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Alternative Energy Crossword

Across
This energy comes from the sun.
Energy that comes from the earth is _______ energy.
Energy that comes from water.
Energy that can be reused is _____energy.
Giant fan like machine.
These items collect energy from the sun.
Biomass energy can be used as ____ for cars.
Down
Giant "farms" that harvest the wind.
Can be used to harvest geothermal energy.
This fuel is developed from plants.